Encyclopediacrustaceancrustacean (krŭstā'shun) [key], primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater forms. The few groups that inhabit terrestrial areas have not been particularly successful in an evolutionary sense; most require very humid environments in order to survive. Sections in this article: The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved. More on crustacean from Fact Monster:
- CRUSTACEANS - These invertebrates include crabs, barnacles, KRILL, and woodlice. They are sometimes called the insects of the sea, because they are the most numerou
- CRUSTACEANS - Crustaceans have a hard, jointed external skeleton, called an exoskeleton, that protects them like armour. They have five pairs of jointed legs, and i
- crustacean: Crustacean Anatomy - Crustacean Anatomy All crustaceans have bilaterally symmetrical bodies covered with a chitinous ...
- crustacean: Types of Crustaceans - Types of Crustaceans Crustaceans can be divided according to size into two main groups. The larger ...
- crustacean: Classification - Classification Crustaceans constitute the subphylum Crustacea of the phylum Arthropoda.
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